Hinding-post.



H. E. PHILLIPS.

summe Pos.

APPLICATION FILED IMI. I0. 1913.

Patented De@ 11,1317.

fnven for orngys.

sTaTEsy PATENT oEEIoE.

' "-"nARvEY E.

PHILLIIS, F DETROIT, MICHIGAN. ASSIGNOB TO THE DAYTON ENGI- NEERINGLABORATORIES CO., A CORPORATION OF OHIO.

BiNmNe-rosr.

fT all wh'omjt may concern.'

l""f""-Be`it known that I, HARVEY E. PHiLLirs, 'a' citizen of the UnitedStates, residing at "UDe'ftroit, county of Wayne, and tate of ,Michigan,have' invented certain new and useful Improvements in Binding-Posts, ofvvhich the following is a "act description.

i This .invention relates to improvements in binding or terminal postsfor securing the terminals of connectors, or clips. of any type,

" firmly in` position, but which. permits the ready detachment of theconnector or clip j from the binding post. lUne of the ob]ects of thisinvention is to so combine the elements thereof that the structure willbe simple and compact, and especially adaptable to be used in places, 1wherein economy of space is desired or es- 2gofsentialj f Anotherobject-of the present invention to provide a binding post, which Willfacilitate the application and removal of the Connectors 'or clipstherefrom. 2'5 A further object of the present invention is to socombine the terminal post and the clip or connector, to be securedthereto, that thef'saidelip'or connector will be positively docked' orlatched in applied position, thus "preventing the accidental removalofsaid clip, and also preventing the inadvertent `idisplaCement thereof.

Astiil further object of the present invventionis to provide means forpermitting *the movable element or elements of the bind-V iiigpostrto bewithdrawn from their nor- "inal' esition and maintained in aninoperaposition, thus facilitating the applicaiaiidfremoval of theelips,'to and from hers'ai'd p'ost.

. With the above and incidental objects in vieit`,"t`here is shown inthe accompanying "drawin a preferred form of one embodim resentinvention, a detail de- 'shriptionof which will now be given.

,i "1"' In the dra-wings:

' Figurel is a vertical sectional view taken oh `the line 1-1 of Fig. 2,of .a terminal post embodying the present invention.

Speccation of Letters Patent.

full, clear, and ex-.

of the entrance opennig the diameter of that PatentedDec. 11, 1917.

Application filed January 10, 1913. Serial No. 741,279.

Fig. 2 is view in side elevation of the terminal post fziliown in Fig.1.

Fig. 3 is a view in elevation of a modified form of the terminal postshown inlFigs. l and 2. x

Fig. 4 is a View similar to Fig 3, but showing the movable element ofthe terminal post in inoperative or non-clamping position.

Fig 5 is a perspective View of one form of the terminal clip embodied inthe present invention. 1

In Figs. l and 2, it will be seen that the binding post comprisesacentral rod or stud 20, having a fiange or projection 21, formedintermediate the ends thereof and providing a base'for the' springpressed cap or sleeve 23, of the upper clamping element or hinding post.j

This cap or sleeve iscounterbored, as at 24, and has the spring 25,seated in the counterbored portion. A shoulder formed by counterboringsaid sleeve, acts as one abutment .f Jr the spring 25, and the plate 26,

which is secured to the extremity of the, stud 20, constitutes theopposite abutment.

From this construction, it will be seen that the spring normallymaintains the cap or sleeve 23 in Contact with the shoulder 21,

or atleast, in contact with what maybe termed the locking shoulder 27,which may be formed integral with the lian e 2l.

The binding post described above is adapted to be employed inconjunction with a novel type of terminal clip; the novel featuresthereof being set forth her, ,inafter. This terminal clip comprises a.shank portion 29, provided with the head portion 30, wherein an annularopeningl, havingan entrance opening 32, isA formed.

Inorder to secure the terminal clip 28 ,against accidental removalfromits applied position, thediameter of the opening 3l is made slightlygreater than the diameter of the locking shoulder 27, but less than thediameter of the flange 21,` while the diameter uortion ofthe stn'd 20,the sleeve 23, but is which is surrounded' y 32 is greater than' helwhich is a A'as :a means for securing tiltmalv c ar'nping.4 element.

less tlian the diameter ofthe locking shoula er 2 j In the resentinvention a' further locking effect as been secured by having aprojection or in 33, secured to the {lange-21, pted to fit within theslot 34, formed in the adjacent clamping' face of the sleeve' or ca 23.v f' The terminal clip 28, is also recessed as at 35, so that the pin 33will [it within the recessed portion 35, when the terminal is applied tothe binding post.

`Under certain conditions, it has been found advisable to rovide somemeans, 'whereby the c'ap or eeve 23 may be held out of operatingorclampinp position, in

order to facilitate the remova or the appli- .Y

' i ed on t e movable sleeve or clamping elecation of terminal clipsto-,tle post. .The provision ofthe pi 13.3 notonly acts nd maintainingthe terminal clip in its applied position, but it also rovides theaforementioned `means for holding the cap 23 out of operative' posiisraised Yabove the pin 33, and turned so t at the slot 34 thereof, isremoved from alinement with the in, the' cap may be released and will bedp'in raised. position by engagement with the-.pin 33. In Fi 1 and 2,there is shown an addi- This clamping element is insulated from thestructure'heretofore described, so that an electricalcn- .nection mabelmade, which may be absolutely insu ated from 'and independent of 'theelectrical connection secured byhthe outer clamping element. The centralstud 20 is, in the `present instance, surrounded by an insulated .sleeve41, which has at one end, thewasher or head '42, one face of which liesadjacent to the washer 21% The'op osite faceV of this washer' 42 carriesa meta facin 44,. which forms. a bea-ring element for t e reduced end 45of the movable sleeve 46.` A metal tube 47, surrounds a the said sleeve41,l and is reduce as at 48, thus forming the shoulder 49, whichfurnishcs'one abutment for thel spring 50. -V This spring is mounted inthe reduced portion of the metal sleeve 47 and tendsto `normallymaintain the movab in 'contact with the metal yfacing 44 of the washer42. The movable sleeve or clampin elcment46 has an internal flange, asat 5 which forms -an' abutment, against which y,

the spring normally presses, whereby this sleeve, as above stated,ismaintained in contact with the.' metal. facing 44 of the washer 42.

A In. abinding post ofv this type, a locking shoulder '52,is formed onthe movable sleeve or clamping'clcment, by reducing the clamping endthereof, as at 45, so that the termiits mainY o eningof'.inventionortion of le sleeve 46,*

' bey vmaintaine in. non-clamping.

nal clip which is used in conjunction with' this portlon ofv the bindingpost, must have Y' the` reduce 'portion o,

than the iameter of'ths reducedportion 45, but of 'greater diameter thanthe cross sectional dlameter of the -metal tube, upon eater diameterthan ithe sleeve, while theI entrance o ening 'must Abe of less diameterwhich the movable .sleeve is mounted and which in reality forms .theelectrical connection.

It will, of course, be understood that this particular construction ofthe binding post may be provided with a lockingpin to cooperate with arecess formed in thev terminal clip, if"it.`1s so desired, it simplybeing necessa that, the locking pin 53 be mounttrical connection withany circuit to which th'e body ofthe binding post may be connected...

The structure of the post shown in l i is substantially the same asthatdescr in connection with the description ofthe similar elementsincluded in Flgs. 1 and 2, and therefore, no further detaileddescription is deemed necessary.

While I have shown preferred forms of embodiment of the presentinvention, it

should be understood that various changes and modifications of theelements` and combinations of elements, comprising the presentinvention, may' be made without departing from the Spiritand scope ofthe present.

What I claim is as' follows: I- 1. In a 'binding postthe combinationwith a plurality of slidable clamping elelos ments; of a' stationaryelement' resilient.

means for maintaining said slidab e elements in clamping positionrelative thereto; and means whereb said sl'idable elements may ition`against the normal tendency of sai resilient'means. .4

2. The combination vwith a binding post, comprising a supporting studhavin astationary clamping element secured creto; of a coperatin movableclamping element mounted on sai stud; and a locking shoulderintermediate said stationary and. movable clamping elements and' ofgreater -di- 4 ameter than the stud; ofv a terminalclip'. comprising aplate provided with a central' .opening of greater diameter than the1ocking shoulder, and an entrance openin to suveentrel opening (if lessdiameter tghan the diameter ofthe locking shoulder but of greaterdiameter than the diameter of the I stud; said plate being provided witha lock-A V ing recess; und a locking pin carried by Said Stud forengagement therein, Wherebysaid terminal clip dis lacement. Y,

n testimony whereof I affix my signature in the presence of twosubscribing witnesses.

HARVEY E. PHILLIPS. Witnesses:

ULYseEs R. BAILEY, GEO. W. BoFFo'M'rn.

will be prevented from Y

